25 Weeks Pregnant
You’re 25 weeks pregnant — in the second trimester, and 15 weeks to go until your due date. Your baby is about the size of a cauliflower this week.
How big is your baby at 25 weeks?
Size of a
cauliflower
Length
~34.6 cm
Weight
~660 g
Last week your baby was about the size of a ear of corn; this week it's grown to roughly a cauliflower.
Sizes are averages from standard fetal-growth references. Every baby grows at its own pace — your provider tracks yours at scans.
Baby development at week 25
The fetus is gaining baby fat, smoothing out the wrinkled skin, and hair is gaining colour and texture. The hands are now fully developed with working nerves, so grasping and fist-making are common. Nostrils, which were plugged, begin to open, letting the fetus practise breathing motions with amniotic fluid. About the size of a cauliflower.
Your body at 25 weeks
Common symptoms many people notice around week 25 include:
- Strong, frequent kicks
- Hemorrhoids or constipation
- Trouble sleeping
- Possible carpal-tunnel tingling in the hands
Symptoms vary enormously from person to person and pregnancy to pregnancy. Not having a symptom on this list is just as normal as having it.
Tips for week 25
- Fibre and water help with constipation and hemorrhoids
- A pregnancy pillow can improve sleep
- Take breaks from repetitive hand tasks if you feel tingling
What trimester is 25 weeks?
Week 25 falls in the second trimester. As a quick map: the first trimester runs weeks 1–13, the second covers weeks 14–27, and the third is week 28 through birth (a due date is set at 40 weeks). Want your own dates? Our Pregnancy Due Date Calculator shows your due date and exactly how far along you are today.
The second trimester (weeks 14–27) is the stretch many people find most comfortable: early nausea usually fades, energy returns, and the bump becomes visible. The big checkpoint is the mid-pregnancy anatomy scan around week 20, and you'll likely feel the first movements during these weeks.
Frequently asked questions
- How many months is 25 weeks pregnant?
- 25 weeks pregnant is about 6 months. Pregnancy months don't divide evenly into 4-week blocks, so week-to-month conversions are approximate — most providers track pregnancy by week, not month.
- How big is the baby at 25 weeks?
- At 25 weeks, the baby is about the size of a cauliflower, roughly 34.6 cm and around 660 g. These are averages — healthy babies vary, and your provider tracks your baby's own growth curve at scans.
- What trimester is 25 weeks?
- Week 25 is in the second trimester. The first trimester is weeks 1–13, the second is weeks 14–27, and the third is weeks 28 to birth (around week 40).